I got the unit yesterday. I won't be able to test it properly before next week, but wanted to hook it up and just fiddle around a bit. Now, two things struck me, one of which I'm not sure what to do with.
1. The fan is always on. It's not super loud. It's a bit quieter than my oscilloscope (Rigol). It sucks, but I'll probably be able to live with it. Most likely I'll have my scope powered up whenever I use this thing anyway.
2. There's a really high pitched noise coming from the unit. It's higher than your average CRT monitor whine. It's almost not a sound at all, and more a sensation. It's very fatiguing, almost nauseating. I downloaded a random FFT app on my phone, it registered a 15Khz spike at startup (which is clearly audible, sounds like something charging up), but then nothing. The nauseating sound has higher pitch than that, how much higher I'm not sure, but I assume it has to be quite loud for me to actually hear it. I mean, I guess I have a good ear, but I am 41 and have no illusions

I hope then that this whine is a fault, or that it will pass (is it possible?). If not, I'm not sure if I'll be able to live with it. Crossing my fingers 🤞🤞